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प्रश्न
Draw a ray diagram to show the dispersion of white light.
Draw a ray diagram to show the dispersion of white light by a glass prism.
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उत्तर
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संबंधित प्रश्न
State the cause of dispersion of white light passing through a glass prism. How did Newton show that white light of sun contains seven colours using two identical glass prisms. Draw a ray diagram to show the path of light when two identical glass prisms are arranged together in inverted position with respect to each other and a narrow beam of white light is allowed to fall obliquely on one of the focus of the first prism.
Draw a ray diagram to explain the term angle of deviation.
As light rays emerge from a glass prism into air, are they refracted towards or away from the normal?
Fill in the blank with suitable word:
When a ray of light enters a prism, it bends ................ the normal ; as it leaves the prism, it bends ................. the normal.
Complete the ray diagram given below to show the nature of light produced on the screen.
The completed ray diagram is as shown below:
Draw a labelled diagram: Dispersion of light through a prism.
Which one of the following is involved for the formation of rainbow in the sky?
What is Newton’s disc?
Assertion: We can see the rainbow in the sky when the rain starts falling after a spell of bright sunlight.
Reason: The rainbow is formed due to the dispersion of light.
Make a rainbow
Try to make your own rainbow. You can try this project in the morning or in the evening. Stand with your back towards the Sun. Take a hosepipe or a water pipe used in the garden. Make a fine spray in front of you. You can see different colours of rainbow in the spray.
